- Fixed bogus testcascade, also made fixture sequences optional.
- Fixed bogus testcascade, also made fixture sequences optional.

wujuguang/sqlalchemy,pdufour/sqlalchemy,j5int/sqlalchemy,j5int/sqlalchemy,itkovian/sqlalchemy,halfcrazy/sqlalchemy,bdupharm/sqlalchemy,elelianghh/sqlalchemy,ThiefMaster/sqlalchemy,robin900/sqlalchemy,graingert/sqlalchemy,hsum/sqlalchemy,sandan/sqlalchemy,wfxiang08/sqlalchemy,alex/sqlalchemy,Cito/sqlalchemy,graingert/sqlalchemy,halfcrazy/sqlalchemy,bootandy/sqlalchemy,sqlalchemy/sqlalchemy,276361270/sqlalchemy,Akrog/sqlalchemy,wfxiang08/sqlalchemy,bootandy/sqlalchemy,WinterNis/sqlalchemy,alex/sqlalchemy,hsum/sqlalchemy,davidfraser/sqlalchemy,davidfraser/sqlalchemy,Cito/sqlalchemy,epa/sqlalchemy,itkovian/sqlalchemy,brianv0/sqlalchemy,inspirehep/sqlalchemy,dstufft/sqlalchemy,epa/sqlalchemy,zzzeek/sqlalchemy,wujuguang/sqlalchemy,sandan/sqlalchemy,elelianghh/sqlalchemy,Akrog/sqlalchemy,EvaSDK/sqlalchemy,monetate/sqlalchemy,davidjb/sqlalchemy,WinterNis/sqlalchemy,dstufft/sqlalchemy,olemis/sqlalchemy,olemis/sqlalchemy,bdupharm/sqlalchemy,davidjb/sqlalchemy,EvaSDK/sqlalchemy,robin900/sqlalchemy,pdufour/sqlalchemy,monetate/sqlalchemy,276361270/sqlalchemy,alex/sqlalchemy,brianv0/sqlalchemy,Cito/sqlalchemy,inspirehep/sqlalchemy,ThiefMaster/sqlalchemy